at least 10 times more likely and added a few degrees to how brutally hot it got, a study said.
The study has not been published in a peer-reviewed scientific journal yet but follows scientifically accepted techniques, and past such studies have been published months later. The daily highest temperatures were the most unusual, a one-in-1,000-year event in the current warmer world, but “almost impossible in a world without climate change,” the study said.
With climate models, the scientists simulate a world without the 2.2 degrees of warming since pre-industrial times and see how likely this heat would have been in that cooler world without fossil fuel-charged warming. With observations they look at history and calculate the chances of such a heat wave that way.